Gina's message that calls our attention to Perceptions is very important..
Perceptions are essential for real-life poblems solving- the aim of this blog. Edward de Bono who is my model and guru in many respects
has emphasized many times that most errors are errors of perception
NOT of logic. See e.g.: http://www.edwarddebono.com/PassageDetail.php?passage_id=1143&
Therefore logic is many times a solid sure way between two swamps.